Even as a native speaker of German, this leaves me half guessing, so it would probably not be inappropriate for you to ask the original author of the document if you can. That said:

In software engineering and data processing jargon, the expression (einen Wert/ein Datum/...) anziehen can be used to mean to retrieve or to select (a value/a piece of data/...) [from a database] for further use.

Hence I would tentatively translate the phrase in angle brackets as baseline selected for the export.

I've got no clue what 'angezogen' could mean here. However, I find the angle brackets somehow suspicious.

For me it looks like a placeholder text displayed in lieu of the actual data wich should have been retrieved from a database query. I would expect a proper date there and not this text. It looks rather like an error in the original text. In this case the right hand side doesn't give any additional information to the left hand side, if that matters.

My suspicion goes even further. I'd guess that this placeholder error message was originally translated into German from another language, very likely English. In this case, it would be translating from the wrong language a wrong text that shoudn't be there at the first place...

I think your wild guessing could be right. It could be a discripition for the baseline, which should be exported. And when I think about your idea of back translating, thinking of a 'catchy baseline' the germand word 'anziehend' comes to my mind.
It looks nearly like 'angezogen' but means something quiet diffrent.
Whereas 'angezogen' means 'to be dressed' you could use 'anziehend' for something like 'catchy'.

In my opinion this could fit.

“A poet is a musician who can't sing.”
― Patrick Rothfuss, The Name of the Wind